Flanges | Coupling | Hex Reducer Bushing | Insert Barb x MIP Adapter | Insert Barb x MIP Adatper | Push to Connect End Cap | Reducer Coupling | Slip On Flanges | 1-1/4" x 1/2" | 2-1/2" x 2" | 2" x 3/4" | 3" x 3" | 8" x 6"